Schaller M6 90 Guitar Tuning Machine
The Schaller M6 90 guitar tuning machine delivers outstanding precision and smooth operation with its refined 1:18 gear ratio. Designed to set the standard for closed-type tuners, all components are CNC-machined and finished for consistent, velvety tuning stability.
Featuring high-grade brass string posts engineered directly into the housing, this tuner provides exceptional wear resistance. The self-locking internal drive and permanent lubrication with Schaller special grease ensure long-lasting, maintenance-free performance.
Equipped with an innovative stepped M6 flanged washer, it centers the string post securely without requiring stepped peghead drilling. This eliminates tilting moment and reduces mechanical stress on both the post and rear mounting screws.
| Brand | Schaller |
| Product Type | Guitar Tuning Machine |
| Series | M6 Series |
| Gear Ratio | 1:18 |
| Weight | 0.79 lb |
| Single Tuner Weight with Button (Small/Large) | Metal (1.27 oz / 1.34 oz), Perloid (1.06 oz / 1.09 oz), Ebony (1.06 oz / 1.09 oz) including banjo bolt |
| Button Bore Hole | Diameter 0.17 in (4.2 mm) with driving surface 0.14 in (3.6 mm) |
| String Post Material | Brass |
| Lubrication | Permanently lubricated with Schaller special grease |
